25AA160A-I/SN

Memory IC Overview

The Microchip Technology 25AA160A-I/SN is a 16 Kbit Serial Electrically Erasable PROM featuring a 2048 x 8-bit organization. It utilizes an SPI-compatible serial bus with a maximum clock frequency of 10 MHz and operates within a supply voltage range of 1.8 V to 5.5 V. The device supports industrial temperature ranges from -40 °C to +85 °C and is housed in an 8-lead SOIC package.

Memory IC Feature Summary

• Supports sequential read operations with automatic address pointer incrementation across the memory array.
• Includes built-in write protection mechanisms such as a write enable latch, power-on/off data protection circuitry, and a dedicated write-protect pin.
• Features a hold input that allows suspension of serial communication without resetting the sequence or requiring retransmission.

Memory IC Applications

• Direct interface with microcontroller families possessing built-in SPI ports
• System configuration storage requiring non-volatile data retention
• Data logging applications utilizing self-timed erase and write cycles

Memory IC Procurement Notes

Verify the specific suffix 'I' confirms the Industrial temperature rating (-40°C to +85°C) and 'SN' denotes the 8-lead SOIC package. Confirm RoHS compliance status for environmental requirements. Ensure the ordering code matches the exact 16-byte page size specification for the 'A' version variant.

Memory IC Selection Notes

Select this component when a low-power CMOS EEPROM with a wide 1.8V to 5.5V operating range is required. The 16-byte page size distinguishes it from the 'B' version which uses 32-byte pages. Consider the 10 MHz clock speed for high-speed SPI bus synchronization needs.

Memory IC Part Context

This part belongs to the 25XX160A/B family of 16 Kbit Serial EEPROMs manufactured by Microchip Technology. The 'A' designation specifically indicates a 16-byte page size, contrasting with the 'B' series which features 32-byte pages. The 'AA' prefix identifies the device as supporting the lower 1.8V supply voltage threshold.

Memory IC Replacement Considerations

Public confirmed substitute part numbers: 25AA160B-I/SN (Note: different page size), 25LC160A-I/SN (Note: different voltage range).